<%= field_set_tag _("Valid Host Groups"), :id => "template_combination" do %>
  <%= f.fields_for :template_combinations do |builder| %>
    <%= render 'provisioning_templates/combination', :f => builder %>
  <% end %>
<% end %>
<p><%= link_to_add_fields('+ ' + _("Add Combination"), f, :template_combinations, "provisioning_templates/combination", { :target => '#template_combination', :primary_button => false }) %></p>
